<template>
  <div class="icons">
    <swiper :options="swiperOption">
      <swiper-slide v-for="page in pages" :key="page.id">
        <div v-for="item in page" :key="item.id" class="icon">
          <div class="icon-image-container">
            <img :src="item.imgUrl" alt="" class="icon-image">
          </div>
          <p class="icon-desc" v-text="item.desc"></p>
        </div>
      </swiper-slide>
    </swiper>
  </div>
</template>

<script>
export default {
  name: 'HomeIcons',
  data () {
    return {
      swiperOption: {
        autoplay: false
      }
    }
  },
  props: {
    iconList: {
      type: Array
    }
  },
  computed: {
    pages () {
      const pages = []
      this.iconList.forEach((item, index) => {
        const page = Math.floor(index / 8)
        if (!pages[page]) {
          pages[page] = []
        }
        pages[page].push(item)
      })
      return pages
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import '~styles/variable.styl'
  @import '~styles/mixins.styl'
  .icons >>> .swiper-container
    width: 100%
    height: 0
    padding-bottom: 50%
  .icon
    position: relative
    float: left
    width: 25%
    height: 0
    padding-bottom: 25%
    overflow: hidden
    .icon-image-container
      position: absolute
      top: 0
      left: 0
      right: 0
      bottom: .44rem
      box-sizing border-box
      padding-top: .3rem
      .icon-image
        display: block
        margin: 0 auto
        height: 100%
    .icon-desc
      position: absolute
      left: 0
      right: 0
      bottom: 0
      height: .44rem
      line-height .44rem
      text-align center
      color: $c33
      ellipise()
</style>
